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ADC A,r     Add With Carry     Rabbit 4000/5000 Instruction

Opcode	Instruction	Operation
----	ADC A,r	A = A + r + CF
7F 8F	ADC A,A	A = A + A + CF
7F 88	ADC A,B	A = A + B + CF
7F 89	ADC A,C	A = A + C + CF
7F 8A	ADC A,D	A = A + D + CF
7F 8B	ADC A,E	A = A + E + CF
7F 8C	ADC A,H	A = A + H + CF
7F 8D	ADC A,L	A = A + L + CF

Clocks	8-Bit Access	16-Bit Unaligned	16-Bit Aligned
Rabbit 4000	4	n/a	n/a
Rabbit 5000	2	2	2

Flags				ALTD			IOI/IOE
S	Z	L/V	C	F	R	SP	S	D
·	·	V	·	·	·

Description

A is summed with the C flag and with r (any of the registers A, B, C, D, E, H, or L). The result is stored in A. The Rabbit 4000/5000 assemblers view "ADC A,r" and "ADC r" as equivalent instructions. In the latter case, A is used even though it is not explicitly stated.

The opcodes for these instructions are different than the same instructions in the Rabbit 2000, 3000 and 3000A.